If you put a door or a window on a fairy house, that means you really believe in fairies. If you see pixie dust, that doesn't mean your mom or dad put sprinkles around the house. That means a fairy came. You have to wait overnight for the fairies to come.
Whenever you see a blue spot on a tree, that could mean fairies live there.
At my school we saw a blue spot on a tree, and saw thousands of fairies! My friend said that if you put gum under your pillow, Gubby the Candy Fairy will come and say, "This is an unusual taste." Hmmm.